POPULATION PROJECTIONS OF THE UNITED STATES BY AGE, SEX, RACE, HISPANIC
ORIGIN, AND NATIVITY: 1999 TO 2100
Source: Population Projections Program, Population Division, U.S. Census
Bureau, Washington, D.C. 20233 (301) 763-2436
Internet Release Date: January 13, 2000
I. DATA FILE DESCRIPTION
(NP-D5) Projected Components of Change of the United States Resident
Population by Age, Sex, Race, and Hispanic Origin: Lowest, Middle, and Highest
Series, 1999 to 2100
(NP-D5-C) and (NP-D5-D) NET MIGRATION TO THE UNITED STATES
The files contain the projected net migration to the United States for each
calendar year between 1999 and 2100. Data are presented for the United States
resident population and the foreign-born population by single year of age,
sex, race, and Hispanic origin. Files are available for the middle, lowest,
and highest series and are only accessible on the World Wide Web. There are
no corresponding electronic products.
II. UNIVERSE DESCRIPTION
The projections are produced for the resident population of the United States
which includes people who reside in the 50 states and the District of
Columbia. They exclude residents of the Commonwealth of Puerto Rico, and
residents of the outlying areas under United States sovereignty or
jurisdiction (principally American Samoa, Guam, Virgin Islands of the United
States, and the Commonwealth of the Northern Mariana Islands). The definition
of residence conforms to the criteria used in the 1990 census, which defines a
resident of a specified area as a person "usually resident" in that area. The
projections exclude the United States Armed Forces Overseas, as well as
civilian United States citizens whose usual place of residence is outside the
United States.
The foreign-born population is designated by the absence of United States
citizenship at birth and includes naturalized citizens and non-citizens
residing in the United States. Consequently, a person is considered "native"
if he or she is born in the United States or is born abroad to at least one
parent with U.S. citizenship.
III. TECHNICAL DESCRIPTION
(NP-D5-C) U.S. Resident Net Migration to the United States
(NP-D5-D) Foreign-born Net Migration to the United States
FILE TYPE: ASCII
FILE SIZE:
File Name* Number of Records Columns Variables
Bytes
PMIGDET.A 4,532,880 103,020 42 8
PMIGDET.B 4,532,880 103,020 42 8
PMIGDET.C 4,532,880 103,020 42 8
FMIGDET.A 4,532,880 103,020 42 8
FMIGDET.B 4,532,880 103,020 42 8
FMIGDET.C 4,532,880 103,020 42 8
SORT SEQUENCE: The records are first sorted by series, followed by race,
year, and age. Age is listed in single year intervals
in ascending order.
* The extension represents the series: A=middle B=lowest C=highest.
IV. EXPLANATION OF DATA FIELDS
Series: The extension for each file name describes the series. The letter
"A" represents middle series data; "B," the lowest series; and
"C," the highest series.
Year: For calendar years 1999 to 2100.
Age: Each age code represents a single year of age, except for "100,"
which lists the population counts for people 100 years of age
and over (centenarians).
Race and
Hispanic The data are shown for the Total; White; Black; American
Origin: Indian, Eskimo, and Aleut; and Asian and Pacific Islander
populations. Data are also shown for the Hispanic origin
population, and the non-Hispanic White; non-Hispanic Black;
non-Hispanic American Indian, Eskimo, and Aleut; and non-Hispanic
Asian and Pacific Islander populations. Persons of Hispanic origin
may be of any race.
A = Total population
B = White population
C = Black population
D = American Indian, Eskimo, and Aleut population
E = Asian and Pacific Islander population
F = Hispanic origin population
G = non-Hispanic White
H = non-Hispanic Black
I = non-Hispanic American Indian, Eskimo, and Aleut
population
J = non-Hispanic Asian and Pacific Islander population
V. RECORD LAYOUT
Net Migration for the United States Files:
File Name File Description
PMIGDET.A Projected net migration for the US resident population
from 1999 to 2100, middle series
PMIGDET.B Projected net migration for the US resident population
from 1999 to 2100, lowest series
PMIGDET.C Projected net migration for the US resident population
from 1999 to 2100, highest series
FMIGDET.A Projected net migration for the US foreign-born population
from 1999 to 2100, middle series
FMIGDET.B Projected net migration for the US foreign-born population
from 1999 to 2100, lowest series
FMIGDET.C Projected net migration for the US foreign-born population
from 1999 to 2100, highest series
Location Length Type Data
1 1 Character Series (A, B, or C)
2 1 Character Race
3-5 3 Character Identification (MIG)
6-9 4 Numeric Year (four digits)
10-12 3 Numeric Age (years)
13-22 10 Numeric Total population net migration to the US
23-32 10 Numeric Total male population net migration to the US
33-42 10 Numeric Total female population net migration to
the US
VI. RACE AND ETHNIC DEFINITIONS AND CONCEPTS
The racial classification used by the Census Bureau generally adheres to the
guidelines in Federal Statistical Directive No. 15, issued by the Office of
Management and Budget, which provides standards on race and Hispanic origin
categories for statistical reporting to be used by all Federal agencies. The
race and Hispanic origin categories are defined as follows:
American Indian, Eskimo, and Aleut: A person having origins in any of the
original peoples of North America, who maintains cultural identification
through tribal affiliation or community recognition.
Asian and Pacific Islander: A person having origins in any of the original
peoples of the Far East, Southeast Asian, the Indian subcontinent, or the
Pacific Islands. This area includes, for example, China, India, Japan, Korea,
the Philippine Islands, and Samoa.
Black: A person having origins in any of the black racial groups of Africa.
Hispanic: A person of Mexican, Puerto Rican, Cuban, Central or South American
or other Spanish culture or origin, regardless of race.
White: A person having origins in any of the original peoples of Europe,
North Africa, or the Middle East.
VII. ASSUMPTIONS AND METHODOLOGY
The population projections are created using the cohort-component model. For
a detailed description of the model, the assumptions, and the data used to
create these projections, see the working paper, "Methodology and Assumptions
for the Population Projections of the United States: 1999 to 2100, Working
Paper #38." This paper can be obtained at the national projections internet
site on the World Wide Web or by contacting the Statistical Information Staff
by telephone at (301) 763-2422, or by e-mail at POP@CENSUS.GOV (please
include
telephone number).